Golf ball manufacturing method

a manufacturing method and golf ball technology, applied in the field of golf ball manufacturing methods, can solve the problem that the above-mentioned art does not focus on the volatile components which remain within the golf ball, and achieve the effect of low energy loss and high initial velocity

Active Publication Date: 2020-04-28
BRIDGESTONE SPORTS +1
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The method results in golf balls with low energy loss and higher initial velocity, achieving improved distance performance by effectively converting energy from the club head into ball motion.

Problems solved by technology

However, the foregoing art does not focus on the volatile components which remain within the golf ball.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

examples

[0043]Working Examples and Comparative Examples are provided below to illustrate the invention, and are not intended to limit the scope thereof.

working examples 1 to 18

, Comparative Examples 1 to 7

Formation of Core

[0044]Cores were produced by preparing the two rubber compositions shown in Table 1, and subsequently molding and vulcanizing the compositions under vulcanization conditions of 157° C. and 15 minutes. In all the Working Examples and Comparative Examples, the cores had a common diameter of 37.70 mm.

[0045]

TABLE 1Rubber composition (pbw)IIIPolybutadiene rubber100100Zinc oxide44Barium sulfate20.9218.56Antioxidant0.10.1Zinc salt of pentachlorothiophenol10.4Zinc acrylate18.722.6Zinc stearate3.34.0Organic peroxide A0.6Organic peroxide B0.241.0

[0046]Details on the rubber compositions in Table 1 are given below.[0047]Polybutadiene rubber: Available under the trade name “BR01” from JSR Corporation[0048]Zinc oxide: Available as “Zinc Oxide Grade 3” from Sakai Chemical Co., Ltd.[0049]Barium sulfate: Available under the trade name “Barico #100” from Hakusui Tech[0050]Antioxidant: Available the trade name “Nocrac NS-6” from Ouchi Shinko Chemical Indus...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method of manufacturing golf balls having a core and a cover of at least one layer encasing the core includes the steps of producing a core by molding and vulcanizing a rubber composition containing (A) a base rubber, (B) an α,β-unsaturated carboxylic acid and / or a metal salt thereof, and (C) an organic peroxide; and heat-treating the core for 1 to 24 hours at between 175 and 300° C. Golf balls which undergo little energy loss and have a high initial velocity can be obtained by this method.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This non-provisional application claims priority under 35 U.S.C. § 119(a) on Patent Application No. 2016-124465 filed in Japan on Jun. 23, 2016, the entire contents of which are hereby incorporated by reference.TECHNICAL FIELD[0002]The present invention relates to a method of manufacturing a golf ball which has a core and a cover of at least one layer encasing the core.BACKGROUND ART[0003]The initial velocity of a golf ball is what drives increases in the distance traveled by the ball, and so it is desirable to raise the initial velocity to the very limit of what is permitted under the Rules of Golf. Golf balls are made of polymeric substances, with the majority of golf balls today being solid golf balls containing a core that is obtained by molding under applied heat a rubber composition prepared by adding a crosslinking agent or organic peroxide, metal oxides and the like to a base rubber such as polybutadiene rubber. The polymeric subst...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityPatents(United States)
IPC IPC(8): A63B45/00B29C71/04C08K5/14B29C71/02A63B37/00C08K5/098B29C35/02B29K19/00B29L31/54
CPCB29C35/02C08L21/00C08K5/098A63B37/0051B29C71/02C08K5/14A63B45/00B29C71/04B29L2031/54A63B37/0074B29K2019/00A63B37/0003A63B37/0023
InventorNAKAJIMA, TSUYOSHIOZAWA, YUICHIRONAKAJIMA, DAISUKE
OwnerBRIDGESTONE SPORTS